feat: add DISC profiles and a sales copilot as an org module

Help reps capture a customer's likely behavior style and get negotiation guidance, with the feature gated from super admin.

Co-authored-by: Cursor <cursoragent@cursor.com>

apps/web/src/lib/behavior-access.ts

@@ -0,0 +1,10 @@
+import type { AuthUserDto } from '@mento/shared';
+
+export function canUseBehavior(user: AuthUserDto | null | undefined): boolean {
+  if (!user) return false;
+  const modules = user.enabledModules;
+  if (modules && !modules.includes('behavior')) return false;
+  if (user.role === 'owner' || user.role === 'admin') return true;
+  const permissions = user.permissions ?? [];
+  return permissions.includes('behavior') || permissions.includes('sales');
+}